Universal mounting and hoist for dumping-truck bodies



W. H, MQMDRMHGK UNIVERSAL MOUNTING AND HoIsT FOR Dur/:PING TRUCK BODIESFiled Aug. 14. 1922 $5 Sheets-Sheet 1 M M922 taff.'

VMM

W H. `MCCORMICK UNIVERSAL MOUNTING AND HOST FOR DUMPING TRUCKa BODIESDec. 1, 1925. 1,563,638

Filed Aug. 14. 1922 3 Sheets-Sheet 2 e 80| S gl l Dec. l, 1925.1,563,638

W. H. MCCORMICLK UNIVERSAL MOUNTING AND HOIST FOR DUMPING TRUCK BODIESFiled Aug. 14. 1922 3 Sheets-$11961;` 5

Patented Dec. 1, 1925.

15eme WALLACE H. MCCORMICK. OF STREATOR, ILLINOIS.

UNIVERSAL MOUNTING AND HOIST FOR DUMPING-TRUCK BODIES.

Application led August 14, 1922.

T all w/zom, 'it may concern.'

Be it known that I, WALLACE H. McCon- Mrcn, a citizen ot' the UnitedStates, and resident ot Streator, county ot La Salle, und State oitIllinois, have invented certain new and use'lul Improvements inUniversal hlountings and Hoists for Dumping-Truck Bodies, of which thefollowing is a speciiication, and which are illustrated in theaccomp-.laying drawings, 'forming a part there- The .invention relatesto trucks, and especially to motor trucks having bodies which tilt fordischarging` the load through the rear end thereof. The chassis@ forautomobile trucks frequently comes from the iiactory without any vdeviceor attachment for mounting a dump body thereon. This 'renders itdesirable that a universal mountingbe provided that is adapted for usewith i'farious sizes of chassis frames and bodies, and that can beeasily mounted on any ordinary type of chassis 'rame.`

One of the objects of the invention is to 5 provide a hinge mountingthat can be easily attached to chassis frames of different dimensions,and without the use of special tools or weakening the chassis frame bydrilling` or cutting the same.

Another object is to provide a hoist for tilting dump bodies that isadjustable for use with dump bodies and chassis frames ot differentdimensions.

In the accompanying drawings:

Fig. 1 is an elevational view ot" a truck equipped with the device of myinvention;

Fig. 2 is a plan view ot a portion of the chassis trame overlying therear axle of the truck;

Fig. 8 is a sectional view on the line 3--3 ot Fig. 2;

Fig. f lis a fragmentary longitudinal sectional view of the rear of thecab andthe `liront o'l" the dump body;

Fig. 5 is a view on the lino 5-5 of Fig. 4C;

.Fig 6 is a sectional view on line G-G-of llig'llg,n

Fig.l t Fig. 4;.

Fig. 8 is a view on line 8-8 of Fig. 1, with the truck body'omitted;

is a sectional view .on line 7-7 of Fig. 9 isa-sectional view along theline 9-9 of Fig. 8; Y

= FioxlO isa detail view on the line 10-10 ot Fig. 8,; and f f SerialNo. 581,782.

Fig. 11 is a view of the truck body in tiltcd position.

Referring to the drawings, a truck 15 is shown equipped with a dump body16 having longitudinal sills 17 normally resting directly on the chassisframe 18. The invention contemplates a hinge mounting 2O that carriesthe dump body load when the body 16 is tilted, and an improved hoist 21preferably operable to tilt the body either from within or without thecab 22, both the mounting 2O and the hoist 21 being adjustable for usewith chassis frames and truck bodies of various sizes.

The ldump body 1G is preferably constructed to include a plurality ofsupporting cross sills, as 23, which in turn rest upon a pair oflongitudinal sills 17. yllhe spacing of the longitudinal sills 17 ispreferably made to coincide with the spacing of side members 19 of thechassis :tra-me 18, in order that the load from the 'dump body maynormally be carried directly downward into the chassis trame.

Easy tilting of dump body 16, unobstructed by the chassis frame, is madepossible by positioning the `dump body to project a substantial distanceover the rear axle Q11 of the truck, thereby causing a relatively largeproportion of the dump body load to be carried by the rear axle 24. Itis `desirable that this rear axle loading be concentrated on the chassisframe immediately over the rear axle, to avoid subjecting the sidemembers 19 to unnecessary strain. This is accomplished by mounting apair of hinge plates 25 on the under side of the longitudinal sills 17above the rear axle 241:. to serve as spacers between the sills andchassis traine 18, and thereby concentrating the loading transmittedfrom the sills to the trame. A cross-bar 26, positioned under the 'frontend of the dump body 16 between longitudinal sills 17 and side members19, likewise normally serves as a spacer and a load concentratingelement.

Y Hinge plates 25 have their middle portion bent downwardly to form legs29. These legs are preferably positioned immediately above therear axle24, yeach leg normally restingl on a corresponding saddle block 32 whichis bolted to the chassis frame 18. The front end 4of leach hingeplate/25 is fastened to a corresponding sill 17, as by bolts 30 andcleats 30a, the cleats being slotted to perm-it adjustmentto vsills ofdifferent widths. The rear' end of plate 25 is 'shaped to form a hinge35, rotatable about a hinge rod 31, `extending through the flanges 36 ofsaddle blocks 32. Hinge rod 31 adjustably connect-s the saddle blocks32, as by the outer slidable collars 33 and setscrews 34, therebyadapting the rod 31 and blocks 32 for mounting on chassis frames ofdifferent widths. Saddle blocks 32 areV preferably fastened to sidemembers 19 as by bolts 37, hook bolts 3S, and cleats 83. Bolts 40likewise secure blocks32 to the end member 39 of the chassis frame.

Saddle blocks 32 are preferably made substantially wider than the hingeplates 25 that are positioned therein, to provide for adjustment of theplates, within the limits of the saddle blocks 32, to different spacingof sills 17. Hinge plates 25 are adjustably connected, as by the innerpair of slidable col lars 33 and set-screws 34, mounted upon hinge rod31.l It is obvious that the entire hinge mounting 2O can be easilyV andquickly mounted on any chassis frame of the generaltype shown, withoutrequiring th-e use of any special tools, and without weakening thechassis frame by punching or drilling any considerable number of. holestherein.

Tilting of the dump body 16 causes all of its load to be carried throughlongitudinal sills 17 and plates 25 into hinge rod 31. Hinge rod 31 ispreferablyplaeed as close as possible to the end member 39, to minimizethe bending effect on the chassis frame of the loa-d from the tilteddump body. y

Dump body 16 is held against lateral movement bya two-piece standard 41,provided 'with vertical arms 42. These arms have their upper endsflaredoutwardly to serve as a guide to the front end of the dump body whileitis beinglowered from a tilted position. Standard 41 is provided withbolts 43 and cleats 44 for fastening to side members 19 withoutrequiring any punching or drilling of holes, Adjustability of vstandard41 to dierent widths of chassis frames and dump bodies is Vsecured byproviding two sets 0f cleats 45and bolts 46, which clamp the two piecesof the standard together.

VHoist 21 includes a main shaft 47, journaled in a pair of pedestalblo`ck`s48. These blocks are fastened to side ,ineinbers'lQ by Ufbolts49 and cleats 50, and `are positioned adjacent to the rear wall `60cfthercab 22. Rotation of shaft 47 is accomplished by manual operation cfavlewertl, having a. pawl 52 engaging 'a ratchet wheel 53, fixedlymounted near one end of the shaft. Lever 51 coinprises a slotted piate54,.and a handle pivot-ally connected to plate 54, asby a bolt 56. Shaft47 entends through a slot- 57 in plate 54, thereby permitting lever 51incassa to bev moved radially relative to sha-ft 47, as well as rotated.Pawl 52 is liXedly mounted on plate 54, so that the radial movement ofthe lever relative to shaft 47 causes engagement and disengagement ofpawl 52 with the ratchet wheel 53.

A holder 53 is provided on the side of cab 22, as a receptacle forhandle 55 when the lever 51 is not in use. To insure disengagement ofpawl 52 from ratchet wheel 53 when handle 55 is in the holder, the outerend of the handle is bent to form a hook 59, which engages the holderonly when the lever is pulled outwardly and when so engaged fastens thelever in its cxtreme out-er position relative to shaft 47. lVhen thelever is not in use it can also be disposed of by pushing it down untilhandle 55 engages the inner edge of fender S7.

The pivotal mounting` of handle 55 on bolt 56 permits the handle to beswung close to or away from cab 22, as desired, so that the lever 51 maybe actuated to rotate shaft 47 either from within or without cab 22. Aspiral spring 62, mounted on shaft 47. yieldingly holds plate 54 inContact with ratchet wheel 53.

An upright frame 66 is bolted to the rear wall 60 of cab 22, to providea support for pulleys 64, mounted on the upper end of the frame. A pairof chains 63 extend over pulleys 64, each having one end wound aboutshaft 47 and the other end fastened to the front end of dump body 16.Tilting of the dump bo'dy 16 results from rotation of shaft 47 bycausing thc chains 63 to wind on the shaft and lift the front end of thedump body. A rod 65 holds the chains 63 close together at a point abovetheir winding portion, and thereby causes the chains to wrap spirallyabout the shaft 47.

Frame 66 comprises a pair of upright plates 67, pivotally connected attheir upper ends to a cross bar 84. The frame is supported by pedestalblocks 48, mounted on side members 19 of the chassis frame. the lowerends of plates 67 being fastened to the pedestal blocks, as by bolts 85.The pivotal connection of plates 67 to cross-bar 84 adapts plates 67 toconnect with and be supported by pedestal blocks of dill'erenl spacings.

Shaft 47 is normally held against rotation in a direction to unwindchains 63, by provioliiig a pair of ratchet vwheels 63, adjustablyfastened to the shaft 47 adjacent thtl pedestal blocks as. Paws G9,pivot-any mounted on pedestal blocks 43. are normally held in engagementwith ratchet wheels 63 by springs 70, to permit shaft 47 to ro'tattI iiia direction to wind up. chains 63, and to prevent rotation of the shaftin the 'opposite direction. Then it is desired to rotate shaft 47tounwind chains 63, pawlsy 67 are ii'fted by means of rods 71 on whichsprings 70 are mounted. Rods 7l are connected at their upper ends to acrank shaft 72, rotatablymounted on the frame 66 and back Wall 60 of cab22, as by bearings E36. Rot-ation of shaft 72 lifts rods 71, therebydisengagi'ng pavvls 69 from ratchet wheels 68 and permitting shaft i7 torotate and unwind chains 63.

The use of hoist 21 on various Widths of chassis frames is made possibleby the adjustability of frame GG and Winding shaft 17 to differentspacings of pedestal blocks 48. By positioning frame GG against the backvvall of the cab, hoist 21 occupies a relatively small space and permitsthe front end of dump body 1G to swing close to the cab.

To prevent dump body 1G from tilting unexpectedly as a result of unequaldistribution of the load or rapid driving over bumps and depressions, alatch '73 has been provided. rlhis latch :is pivotally mounted on shaft457 so as to be rotated into engagement with a bar 77, adjustablysecured to the front cross sill 23 of dump body 1G, as by slotted plate78 and bolts 79. Latch 73 is actuated by a lever 711-, mounted on thefront wallof seat box 7 5, where it is readily accessible. The latch 73and lever 74 are connected by a rod 76, extending through seat box 75,and the rod is made adjustable by a clamp 81. When lever 74 is pulledback against the front of seat box 75, latch 7?) is in Contact with bar77, thereby preventing any tilting movement of the dump body. Apivotally mounted catch 8O engages the upper end of lever 74 to locksaid lever and latch 73 against movement.

A chain 82, connecting dump body 16 with one of the side members 19,limits the possible amount of tilting of dump body 16.

l claim as my invention il. .a-r universal hinge mounting for dumpingtruck bodies comprising, in combination, two pairs of cooperating saddleblocks and hinge plates, each saddle bloc-k being wider than thecorresponding hinge plate, a hinge rod extending through and adjustablyconnecting the saddle blocks for application of the saddle blocks to thetwo side members of chassis frames of variable width and each hingeplate being adjustably pivoted on the hinge rod within the limits ofwidth of the corresponding saddle block for application of the two hingeplates to the sills ofdump bodies having differently spaced sills, andprojections on the hinge plates normally having supporting' engagementwith the corresponding saddle blocks independent of the hinge rod.

2. A universal manually operable hoist for dumping truck bodiescomprisinof, in combination. a pair of posts and ahorizontal spacingmember extending betvveen and connecting` the posts at their upper ends,each post. being pivotally attached to the spaeing member to permitadjustable spacing of the posts at their lower ends, a pedestal blockreceiving the lower end of the post, clamping means for mounting thepedestal blocks in transverse alignment upon the side members of achassis frame, a- Winding shaft extending through and journaled in thepedestal blocks, pulleys mounted upon the posts adjacent their upperends and a pair of hoisting chains having 'winding engagement with theshaft and extending over the pulleys. Y

3. rlhe combination with the winding shaft of a hoist for dumping truckbodies, of a ratchet wheel on the shaft, a longitudinally slotted leverreceiving the shaft in its slot and a paivl mounted on the leveradjacent the slot whereby the lever has radial movement upon the shaftfor effecting engagement and disengagement of the pawl with the ratchetwheel and angular movement about the shaft for cooperation of the pavvlwith the ratchet Wheel in turning the shaft.

A universal manually operable hoist for dun'iping truck bodiescomprising in combination, a pair of posts connected at their upper endsfor relative angular movement to permit adjustable spacing of the nestsat their lower ends, clamping means for connecting t-he lower ends ofthe posts with the side members'of a chassis frame in transversealignment thereon, a transverse winding shaft journaled at the lowerends of the posts, pulleys mounted upon the posts adjacent their upperends, and a pair of hoisting chains havin g Winding engagement with theshaft and extending over the pulleys.

5. A hoist for a dumping truck body, comprising in combination, a pairof pedestal blocks for mounting on the side frame members of thechassis, a frame constructed for attachment to the rear wall of a caband adjustable in vvidth at its lower end for attachniient to thepedestal blocks, a winding shaft journaled in the pedestabblocks, a pairof pulleys mounted on the frame adjacent its upper end, a pair ofhoisting chains having Winding engagement With the shaft and extendinover the pulleys to tilt the truclr body.

(l. The combination wi th the winding shat'gt of ahoist for dumpii'igtruck bodies, of a ratchet wheel on the shaft, a longitudinally slottedlever receiving the shaft in its slot, a pawl mounted on the leveradjacent the slot whereby the lever has radial movement upon the shaftfor effecting engagement and disengagement of the pavvl with the ratchetWheel and angular movement about the shaft for coope ation of the pavvlwith the ratchet Wheel in turning the shaft, said lever having a hookformed on its outer end, and a holder mounted on the truck forreceiving` the lever when not in use, said lil() l E C hook and holderthereby cooperating to hold the lever in position to disengage said pawllroin said ratchet wheel.

7. The combination with the winding shaft of a hoist for dumping truckbodies, of a ratchet wheel on the shaft adjacent the side ot the truckcab, a longitudinally Slotted lever receiving the shaft in its slot, apawl mounted on the lever adjacent the slot whereby the lever has radialinoveinent upon the shaft for ellecting engagement and disengagen'ientof the pawl with the ratchet wheel and angular' movement about the shaftfor cooperation of the pawl with the ratchet wheel in turning the shaft,and a hinge joint in said lever whereby the outer end of the lever canbe swung away from the cab.

8. The combination with the winding shaft of a hoist for dumping truckbodies, of a ratchet wheel on the sha'lit adjacent the side of the truckcab, a lever' and pawl having angular inoveinent about the shaft withthe pawl cooperating with the shaft to turn the shaft7 and a hinge jointin said lever to Leos-,cee

permit the outer end of the lever to be swung away from the cab.

9. In a hoist for dumping trucks, the coinbination of a winding shaft,ratchet wheels thereon, pawls for engagingl the ratchet wheels, a crankshaft, connecting rods ex tending between the crank shaft and the pawlsand springs yieldingly holding the pawls engaged with the ratehets.

10. The combination with a chassis traine and dumping truck body hingedthereto, ot a winding shaft journaled on the chassis traine, a pair ofpulleys supported over the shaft, two hoisting chains having windingengagement with different parts of the shaft and each extending over oneol the pulleys to the body, and a spacing link connecting the chainsbetween the winding shaft and the pulleys, the length of the link beingless than the distance between the two parts ot the shaft upon which thetwo chains are respectively wound.

VALLACE H. MGGORMICK.

